q 45o

1
DSTO Coherent Vegetation Scattering Model
?? 23cm
Direct Ground Direct Canopy Ground-Canopy
interactions
q 45o
hv10m
Trihedral Corner Reflector
Random Canopy Mean Volume Fraction
0.2 Branch distribution is Gaussian with
mean1.5m and std 0.2m
2
Simulated POLSAR Data
? 0.23m (L-band) ? 45o Pixel size 0.5m x
0.5m SAR resolution 0.69m (azimuth) x 1.38m
(range) File names .isr
HH,HV,VH,VV NB all simulations are carried out in
the wave or FSA co-ordinate system Image size
183 x 183 pixels
Courtesy of Dr. Mark Williams, DSTO, Australia
3
Reading DSTO POLSAR Data Files
Matlab
IDL
N162 zzeros(N) fhhfopen(_HH.isr','r','b')
hdchar(fread(fhh,512,'char'))' dfread(fhh,2
NN,'double') vd(1,)id(2,) z()v t11fi
lter2(ones(nn),k0.conj(k0),'same') Etc. fclose(
'all')
N162 openr, hh1, _HH.isr',get_lun1 headerbyt
arr(512) readu,hh1,header s1 dcomplexarr(N,N) rea
du,hh1,s1 t11smooth(s1conj(s1),nn,edge_truncat
e1) Etc. close,/all
4
(No Transcript)